2. GMT Capital, the general partner of Bay and Bay II, has the power to direct the affairs of Bay and Bay II, including the voting and disposition of shares. As the discretionary investment manager of the Offshore Fund and certain other accounts, GMT Capital has power to direct the voting and disposition of shares held by the Offshore Fund and such accounts. Mr. Claugus is the President of GMT Capital and in that capacity directs the operations of each of Bay and Bay II and the voting and disposition of shares held by the Offshore Fund and separate client accounts managed by GMT Capital. GMT Capital and Mr. Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Mr. Claugus disclaims such beneficial ownership except to the extent ultimately realized.

3. The aggregate number of shares of common stock sold was 50,200 shares and such shares were sold by the Reporting Persons in the following amounts: Bay = 6,400 shares; Bay II = 13,300 shares; Offshore Fund = 27,700 shares; GMT Capital = 1,600; Claugus = 1,200 shares.

4. 3,831,643 shares of common stock is the aggregate number of shares of common stock owned by the Reporting Persons and is owned as follows: Bay = 491,100 shares directly owned by it; Bay II = 1,017,900 shares directly owned by it; Offshore Fund = 2,112,243 shares directly owned by it; GMT Capital = 122,600 shares of common stock beneficially owned by it with respect to separate client accounts managed by it; Claugus = 87,800 shares directly owned by him.

5. The aggregate number of shares of common stock sold was 31,200 shares and such shares were sold by the Reporting Persons in the following amounts: Bay = 4,000 shares; Bay II = 8,300 shares; Offshore Fund = 17,200 shares; GMT Capital = 1,000; Claugus = 700 shares.

6. 3,800,443 shares of common stock is the aggregate number of shares of common stock owned by the Reporting Persons and is owned as follows: Bay = 487,100 shares directly owned by it; Bay II = 1,009,600 shares directly owned by it; Offshore Fund = 2,095,043 shares directly owned by it; GMT Capital = 121,600 shares of common stock beneficially owned by it with respect to separate client accounts managed by it; Claugus = 87,100 shares directly owned by him.

Thomas E. Claugus

03/08/2012

** Signature of Reporting Person

Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person,
see
Instruction
4
(b)(v).